Book/Report FZJ-2020-01125

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Wachstumsuntersuchungen an Bariumtitanat-Dünnschichten, hergestellt mit gepulster Laserdeposition



2001
Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag Jülich

Jülich : Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag, Berichte des Forschungszentrums Jülich 3898, V, 102 p. ()

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Report No.: Juel-3898

Abstract: In the process of developing thin film electro-optical waveguides the influence of depositionconditions and of différent substrates on the optical and structural properties ofepitaxial BaTiO$_{3}$ thin films is investigated. These films are grown by pulsed laser deposition(PLD) on MgO(100), MgAl$_{2}$O$_{4}$ (100), SrTiO$_{3}$(100) and Al$_{2}$O$_{3}$(1$\overline{1}$02) substrates usingtwo deposition geometries. It was found, that the kinetic energy of the ions in the laserinduced plasma is a critical parameter for the structural properties of the BaTiO$_{3}$ thinfilms. The waveguide losses and the refractive indices were measured with a prism couplingsetup. The optical data are correlated to the results of Rutherford backscatteringspectrometry/ion channeling (RBS/C), X-ray diffraction (XRD), atomic force microscopy(AFM) and transmission electron microscopy (TEM) measurements. Furthermore,the growth of epitaxal layers on Si(100) for waveguides is reviewed. For this purpose, thethickness of the required optical isolation layer is calculated using BPM-simulations andthe results are compared with the technological limits of the attainable film thickness.


Contributing Institute(s):
  1. Publikationen vor 2000 (PRE-2000 ; Retrocat)
Research Program(s):
  1. 899 - ohne Topic (POF3-899) (POF3-899)

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 Record created 2020-02-19, last modified 2021-01-30